POWER OUTPUT DEVICE, ITS CONTROL METHOD, AND VEHICLE

摘要

An object oil temperature Toil* is determined by adopting a gradual change process for an oil temperature Toil of a cooling lubricant oil, which is used to lubricate and cool down a motor and a transmission constructed to cause an output power of the motor to be subjected to speed change and to be transmitted to a driveshaft (step S180). A load factor R2 of the motor MG2 is subsequently set based on the set object oil temperature Toil* and a motor coil temperature Tcoil2 (step S190). A motor torque command Tm2* is set with the load factor R2 (step S200), and the motor is then driven and controlled to ensure output of a torque equivalent to the set motor torque command Tm2*. This arrangement drives and controls the motor with consideration of the oil temperature Toil of the cooling lubricant oil and thus ensures more adequate actuation of the motor, compared with a conventional drive control without consideration of the oil temperature Toil of the cooling lubricant oil.